正交车铣三维切屑理论建模研究

针对正交车铣复杂运动所产生变深度、变厚度的切屑问题,基于正交车铣切削理论建立有效的无偏心切屑和偏心切屑的数学模型,从而分别获得圆周刃、端面刃的切屑厚度和深度的数学表达式.在相同切削参数条件下,通过理论建模方法和实验测试方法分别获得三维切屑几何形状,对比分析可知,正交车铣三维切屑理论建模是正确的.因此该切屑的理论模型为正交车铣加工机理的研究提供理论基础和参考依据.

Research on Theoretical Modeling of 3D Chip of Orthogonal Turn-Milling

Aiming at the problems of varying chip thickness and depth due to the complex motion in orthogonal turn-milling,the mathematical models of centric and eccentric chip formation were proposed based on the orthogonal turn-milling theory,respectively.Consequently,the mathematical expressions of chip depth and thickness for both the circumference edge and the face edge were obtained.The theoretical model of orthogonal turn-milling chip was validated by comparing the geometric chip formation with the experimental one under the same cutting condition.The chip model may provide a theoretical foundation and reference for the research on orthogonal turn-milling mechanisms.